232618109 has 2 divisors, whose sum is σ = 232618110. Its totient is φ = 232618108.

The previous prime is 232618097. The next prime is 232618151. The reversal of 232618109 is 901816232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207648100 + 24970009 = 14410^2 + 4997^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-232618109 is a prime.

It is a super-2 number, since 2×232618109² = 108222369269471762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232618409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116309054 + 116309055.

It is an arithmetic number, because the mean of its divisors is an integer number (116309055).

Almost surely, 2^232618109 is an apocalyptic number.

It is an amenable number.

232618109 is a deficient number, since it is larger than the sum of its proper divisors (1).

232618109 is an equidigital number, since it uses as much as digits as its factorization.

232618109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 232618109 is about 15251.8231369237. The cubic root of 232618109 is about 615.0085785482.

The spelling of 232618109 in words is "two hundred thirty-two million, six hundred eighteen thousand, one hundred nine".